Adjustable rod hanger



4w 7, 1958 J. L. FORSYTH ,3

ADJUSTABLE ROD HANGER Filed Oct. 29, 1954 30/ mum James: L. Forsyrh 1N VEN TOR.

limited States Patent ADJUSTABLE R01) HANGER James L. Forsyth, Mineral Wells, Tern, assignor of one half to Fred Whitaker, Mineral Wells, Tex.

Application tflctober 29, 1954, Serial No. 465,616

1 tllaim. {(Il. 287-59) This invention generally relates to an adjustable rod hanger and more specifically provides an improved and novel construction in a supporting device for adjustably securing the polish rod of a pump used in an oil well to the walking beam or other operating mechanism thereby assuring that the reciprocating polish rod will not contact the bottom of the working barrel with resultant damage to the reciprocating parts.

An object of this invention is to provide a rod hanger for adjustably hanging the pump rod which permits relative adjustment of the effective length of the pump rod.

Another object of the present invention is to provide 7 an adjustable rod hanger having means for permitting easy adjustment of the rod and also permitting the rod to be withdrawn or lifted from the working barrel of an oil pump in an easy and expeditious manner.

Still another important object of the present invention is to provide an adjustable rod hanger that is simple in construction, universal in adaptation, rugged, easy to attach and relatively inexpensive to manufacture.

These, together with other objects and advantages which will become subsequently apparent, reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure l is a side elevational view of the adjustable rod hanger of the present invention; and

Figure 2 is a longitudinal, vertical sectional view taken substantially upon a plane passing along section line 22 of Figure 1. showing the details of construction thereof.

Referring now specifically to the drawings, it will be seen that the numeral lll generally designates the adjustable rod hanger of the present invention and includes a frame member designated by the numeral 12 which includes two parallel spaced side members 14 joined together at the upper end by a transverse member 16 and at their lower end by an enlargement l8. Centrally of the side members lid is integrally formed a connecting brace 20. Integrally formed with the upper transverse member 16 is an eye member 22 having an aperture 24 extending therethrough for providing attachment of the adjustable hanger ill to a suitable lifting device (not shown) for a purpose described hereinafter. The lower end of the side rails 1 3 between the transverse member and the lower enlargement 18 is provided with an outwardly bulged or bowed portion 26 having graduations 28 thereon.

Referring now specifically to Figure 2, it will be seen that the lower enlargement 18 is provided with an internally threaded vertical bore 3% and the transverse member 20 is also provided with an internally threaded bore 32 in alignment with the bore .30 for threadedly receiving an elongated externally threaded rod 34-. The externally threaded rod 34 terminates at its lower end in an externally threaded projection 36 that is smaller in diameter than the externally threaded rod 34. The externally threaded projection 36 is utilized for attaching the externally threaded rod 34 to the polish rod (not shown) 2,819,104 Patented Jan. 7, 1958 of the oil well pump wherein the externally threaded rod 34 will form an extension of such a polish rod.

Threadedly received on the externally threaded rod 34 is a sleeve 37 having an internally threaded bore 38 for receiving the rod 34. integrally formed with the sleeve 37 is an elongated pointer member 40 which extends outwardly and engages the surface of the bowed portion at of the side members 14 wherein the elongated member 40 is provided with pointed ends 42 which form pointers for registry with vertically spaced graduation lines 28. Also the sliding contact between the pointed end 32 of the member 40 and the surface of the bowed portion 23 precludes rotation of the member 37 on the rod 34 thereby assuring that the member 40 will move vertically in relation to the rod 34 upon rotation of the rod 34.

The lower enlargement 18 is provided with a projecting boss 44 having an internally threaded bore 46 for threadedly receiving a locking screw it; having a handle 50 pivotally attached thereto by a pivot pin 52 wherein the lock screw 48 will have its inner end. engaged with the periphery of the externally threaded rod 34 for locking the threaded rod 34 in adjusted position in relation to the frame 12. The bottom of the transverse member 16 is adapted to engage the walking beam 54 of the pump rod actuating mechanism or any other suitable pump rod moving device.

Mounted on the rod 34 below the pointer 40 is a handle member 56 secured thereto by a setscrew 58 thereby permitting the rod 34 to be adjusted by rotating the handle 56. The eye member 22 permits the rod hanger 10 to be raised or lowered together with the polish or pump rod.

From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claim.

What is claimed as new is as follows:

An adjustable pump rod hanger comprising a frame for attachment to an actuating mechanism, an elongated threaded rod adjustably secured in said frame, means for attaching one end of said threaded rod to a pump rod, means for rotating said threaded rod, means for locking said threaded rod in adjusted position, and means indicating the position of said threaded rod, said means for rotating said threaded rod including a handle selectively secured to said threaded rod in adjusted position, said locking means including a locking screw extending into said frame and selectively engaging the periphery of said threaded rod, said means for attaching the threaded rod to a pump rod including a reduced longitudinally extended externally threaded projection on the lower end of said threaded rod, said indicating means including a pointer mounted on said threaded rod for vertical movement when the rod is rotated, and graduations on said frame for registry with said pointer thereby indicating the vertical position of the threaded rod, said locking screw including a pivotal end portion for extending laterally therefrom and forming a handle for manipulating the screw.

References Cited in the file of this patent UNITED STATES PATENTS 275,050 Keller Apr. 3, 1883 1,361,733 Jones Dec. 7, 1920 1,649,573 Clark Nov. 15, 1927 2,704,799 Kwasniewski Mar. 22, 1955 

